Journal
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
Volume 77, Issue 7, Pages 715-722Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/zna-2022-0022
Keywords
CaSr(WO4)(2) : Eu3+, Li+; charge compensation; high-temperature solid-state method; optical performance; red phosphor
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Funding
- Chongqing University of Technology [KLA21007, KLB21141, KLA200039]
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A series of CaSr(WO4)(2): Eu3+ and CaSr(WO4)(2): Eu3+, Li+ phosphors with different Eu3+ or Eu3+/Li+ molar contents were successfully synthesized by high-temperature solid-state reaction. It was found that Li+ charge compensation can effectively enhance the red emissions intensity of Eu3+-doped CaSr(WO4)(2) phosphors.
A series of CaSr(WO4)(2): Eu3+ and CaSr(WO4)(2): Eu3+, Li+ phosphors with different Eu3+ or Eu3+/Li+ molar contents were successfully synthesized by high-temperature solid-state reaction. Through a series of characterization methods, the composition, structure and luminescence characteristics of the sample are obtained. Upon excitation at 393 nm, the strong red light correspond- ing to the D-5(0) -> F-7(2) transition of Eu3+ can be observed. The effect of Li+ charge compensation on the photoluminescence of the sample is studied. The strongest red emission is obtained through 1% Eu3+ and 1% Li+ doping. All of the results indicate that Li+ charge compensation can effectively enhance the red emissions intensity of Eu3+-doped CaSr(WO4)(2) phosphors.
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